Washington, DC attorneys Allison Sheedy and Daniel McInnis share their home in the city’s Chevy Chase neighborhood with their four children. They share their large yard with Mrs. Tiggy-winkle, Minnie Mouse, India, and Red, their four egg-laying hens.

Whenever we hear about stories like these, stories of such immense exploitation and predation, there is a tendency to think: How can this happen? How can obscenely rich investors run roughshod over the land, livelihoods, and rights of impoverished local...